Push-button.



' W. J. COOK.

'PUSH BUTTON.

mPucATmu mm Jun: 26. m5.

1 345,570. Eatented Nov. 6, 1917.

able screws 20. It will be understood that in assembling these parts, the face plate 19 is remc red and the casin 3 inserted from the back side into a suite is opening in the block Y, whereu on the face late 19 is screwed down tig t, thus firmly olding the button in position.

When, however, it is desired to mount a button in a socket in a wall, or the like, where the rear side is not accessible, a face plate 19', larger than the base 1, is provided so as to cover the mouth of the opening or socket, as clearly shown in Figs. 3 and 4. In this case, the face plate may be secured in position by means of small screws 21..

It will be seen that the button 5, when depressed, engages the flat head 6 of the plunger and forces the block 11 against the anvils 14 with a firm pressure. It will also be apparent that when released the spring.

8 positively returns the parts to their'normal position, and that there is nothin which can possiblyvstick or become jamm What I claim is: 1. A circuit closer comprising a cylindrical barrel, a base larger than the barrel, a tube or socket mounted in said base within and centrally of said barrel, a plunger extending through said tube and having a flat head and shank, a helical spring surroundi aeaaro ing said plun er below the head and seated within said tu a removable face plate secured to the end of the barrel opposite said base and proilecting beyond the barrel to form an annu ar flange, a button extending through said face late and having a fiat inner face arrange to engage the flat head of said plunger, said button being separate from and unconnected with said plunger, a contact block ad'ustably secured to the inner end of sai plunger .and projecting through said base, and a pair of s aced contacts carried by said base outsi e of said barrel adapted to be engaged by said contact block when the plungeris actuated.

2. A circuit closer comprising a suitable base having an opening, a spring pressed plunger working through said opening, and a pair of spaced, alined contacts mounted on said base adjacent the opening and adapted to be bridged by said plunger, each of said contacts comprisin a rotatable anvil having a plurality of flat aces dis sed around the axis of rotation and extending parallel with such axis, anyone of which faces may be brought into position to be engaged by said plunger.

Intestimony whereof I have aflixed my signature.

WILLIAM J. COOK. 

